The Benchmark Abrasives 4" x 24" aluminum oxide sanding belt is a Made in USA, general-purpose abrasive belt for sanding, shaping, and surface preparation on wood and metal. The wide 4" working surface makes it well suited for portable belt sanders where fast coverage and consistent sanding across larger areas are important.
Aluminum oxide provides a practical balance of cutting performance and value for everyday sanding. Available from aggressive 24 grit through very fine 400 grit, this belt covers heavy material removal, surface leveling, scratch refinement, and finer finish preparation without changing abrasive families.
Aluminum oxide grain for general-purpose sanding on wood and metal
X-weight polycotton cloth backing for support during sanding
Closed-coat construction provides dense abrasive coverage
Butt-joint construction allows the belt to run in either direction
Broad 24–400 grit range for heavy sanding through very fine surface refinement
Made in USA
Materials & Applications
Best For: General-purpose wood and metal sanding with portable 4" x 24" belt sanders.
Common applications include:
Surface sanding and leveling
Removing surface imperfections
Shaping and material removal
Edge sanding
Surface preparation
Progressive scratch refinement
Woodworking and fabrication
General maintenance and repair work
Machine Compatibility
Designed for machines using a 4" x 24" sanding belt, including portable belt sanders and similar equipment used for larger-area surface sanding.
Fits machines designed for 4" x 24" sanding belts, including:
Makita® 9403 Belt Sander
Makita® 9404 Belt Sander
Always confirm your machine's required belt dimensions, configuration, and operating-speed requirements before use.
Tips for Better Belt Performance
Use these aluminum oxide belts for dry sanding only.
Keep the sander moving to help produce a more consistent surface.
Allow the abrasive to do the cutting rather than applying excessive pressure.
Keep the belt tracking correctly and inspect it before use.
A sanding belt cleaning stick can help remove accumulated material from the abrasive surface when appropriate.
Always use the guards and PPE required for your machine and application.
Frequently Asked Questions
No. Benchmark recommends these aluminum oxide sanding belts for dry use only.
This belt is designed for machines that use 4" x 24" sanding belts. Examples include Makita® 9403 and 9404. Other machines using this belt size may also be compatible. Check your exact model and installed setup before ordering, and follow the machine and belt speed requirements. The Makita® 9403 and 9404 are for dry operation, even when the belt itself supports wet use.
It is a general-purpose option for sanding wood and metal, including surface preparation, leveling, shaping, and progressive scratch refinement.
Use 24–60 grit for heavier removal and shaping. Use 80–180 grit for smoothing and scratch refinement. Use 220–400 grit for finer finish preparation.
Yes. The belt is bi-directional, but follow your machine’s required running direction.
Aluminum oxide is the general-purpose choice for everyday wood and metal sanding. For applications focused on heavier steel stock removal or more demanding grinding, consider the appropriate Benchmark Abrasives zirconia or ceramic belt for the material and machine.
The Benchmark Abrasives 4" x 24" aluminum oxide sanding belt is a Made in USA, general-purpose abrasive belt for sanding, shaping, and surface preparation on wood and metal. The wide 4" working surface makes it well suited for portable belt sanders where fast coverage and consistent sanding across larger areas are important.
Aluminum oxide provides a practical balance of cutting performance and value for everyday sanding. Available from aggressive 24 grit through very fine 400 grit, this belt covers heavy material removal, surface leveling, scratch refinement, and finer finish preparation without changing abrasive families.
Aluminum oxide grain for general-purpose sanding on wood and metal
X-weight polycotton cloth backing for support during sanding
Closed-coat construction provides dense abrasive coverage
Butt-joint construction allows the belt to run in either direction
Broad 24–400 grit range for heavy sanding through very fine surface refinement
Made in USA
Materials & Applications
Best For: General-purpose wood and metal sanding with portable 4" x 24" belt sanders.
Common applications include:
Surface sanding and leveling
Removing surface imperfections
Shaping and material removal
Edge sanding
Surface preparation
Progressive scratch refinement
Woodworking and fabrication
General maintenance and repair work
Machine Compatibility
Designed for machines using a 4" x 24" sanding belt, including portable belt sanders and similar equipment used for larger-area surface sanding.
Fits machines designed for 4" x 24" sanding belts, including:
Makita® 9403 Belt Sander
Makita® 9404 Belt Sander
Always confirm your machine's required belt dimensions, configuration, and operating-speed requirements before use.
Tips for Better Belt Performance
Use these aluminum oxide belts for dry sanding only.
Keep the sander moving to help produce a more consistent surface.
Allow the abrasive to do the cutting rather than applying excessive pressure.
Keep the belt tracking correctly and inspect it before use.
A sanding belt cleaning stick can help remove accumulated material from the abrasive surface when appropriate.
Always use the guards and PPE required for your machine and application.
Frequently Asked Questions
No. Benchmark recommends these aluminum oxide sanding belts for dry use only.
This belt is designed for machines that use 4" x 24" sanding belts. Examples include Makita® 9403 and 9404. Other machines using this belt size may also be compatible. Check your exact model and installed setup before ordering, and follow the machine and belt speed requirements. The Makita® 9403 and 9404 are for dry operation, even when the belt itself supports wet use.
It is a general-purpose option for sanding wood and metal, including surface preparation, leveling, shaping, and progressive scratch refinement.
Use 24–60 grit for heavier removal and shaping. Use 80–180 grit for smoothing and scratch refinement. Use 220–400 grit for finer finish preparation.
Yes. The belt is bi-directional, but follow your machine’s required running direction.
Aluminum oxide is the general-purpose choice for everyday wood and metal sanding. For applications focused on heavier steel stock removal or more demanding grinding, consider the appropriate Benchmark Abrasives zirconia or ceramic belt for the material and machine.
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